Cattle-guard.



No. 663,188. v Patented Dec. 4, I900.

I a. L. SUMMERS.

CATTLE GUARD.

[Application filed Jan. 25, 1900.\

(No Model.)

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GEORGE L. SUMMERS, OF BARBOURSVILLE, WEST VIRGINIA.

CATTLE-GUARD.

SPECIFICATION formingpart of Letters Patent No. 663,188, dated December 4, 1900.

Application filed January 25, 1900- 'Serial No. 2,779. (No model.)

improvements in cattle-guards, and is especially adapted for use as a guard to prevent .live stock from straying out of fields or other inclosn res which are intersected by railways, &c., its primary object being to provide a gate which is normally open, but which is adapted to close automatically when approached by cattle, 850., from either direction. To these ends the invention consists in the novel construction and combination of parts hereinafter more fully described and claimed and illustrated in the accompanying drawings, showing the preferred form of my invention and in which--- Figure 1 is a side elevation thereof, and Fig. 2 is a section on the line 2 2 of Fig. 1.

Referring to said figures by numerals of re ference, 1 1 are preferably parallel fence-panels adapted to be placed at right angles to the fence at the point where it is intersected by the railway 2. To theinner side of each panel are hinged two gates 3 and 4, which are adapted to swing toward each other. Each gate 3 isv provided with a preferably-curved arm 5, extending outward therefrom substantially at right angles thereto and perforated at its end for the reception of a rod 6, the opposite end of which is pivoted to the upper end of a bell-crank lever 7, pivoted at a point 8 to the outer face of an upright 9 of one of the panels 1, said uprights being arranged beyond the hinges of the gates 4. Gates 4: are provided with similar arms, rods, and bell-crank levers numbered 10, 11, and 12, respectively, the levers 12 being arranged beyond the pivots or hinges of the gates 3. The lower arm 13 of each of the levers 7 and 12 is provided with an opposite extension 14, notched along the upper edge, as at 15, and adapted to support a suitable weight 16. It will be obvious that this arm may be of any suitable length and the Weight as heavy as desired.

Pivoted to and suspended from the end of each arm 13 is a bracket 17, the lower ends of said brackets being secured to cross-planks or platforms 18 and 19, adapted to extend across the track from panel to panel on alevel with the railway-ties 20. It is to be understood that the brackets of gates 3 are connected to one platform 18, while the brackets of the opposite gates iare connected to platform 19.

In order to retain the platforms in proper position and prevent the same from swinging, I have shown them each pivotally connected by means of arms 21 to a tie 20. These arms, however, may be dispensed with, the ties. 20 serving to. keep the platforms in proper position.

As will be seen by reference to the drawings, the gates are retained normally open by means of the weights 16, which exert a downward pressure upon the arms 14, which pressure is transmitted through the levers 7 and 12 and rods 6 and 11 to the arms 5 and 10 of the gates. Should an animal approach the gates, it would be impossible for it to pass therethrough without first placing its Weight upon one of the platforms 18 or 19. Should platform 18 receive the weight, it will immediately sink thereunder, causing the levers 7 to tilt downward and lifting the weights 16. As the levers tilt downward upon their pivots 8 the rods 6 will be forced forward, carrying the arms 5 therewith and causing the gates 3 to swing inward across the track, thereby barring the exit of the animal. As soon as the weightis removed from the platform 18 the weights 16 will swing the gates open, as is obvious. The gates t will operate in a similar manner when pressure is exerted upon platform 19.

It will be understood that the platforms may be of any desired width and that by adjusting the weights 16 upon the arms or beams 14 the pressure required to operate the gates may be regulated.

In the foregoing description I have shown the preferred form of my invention; but I do not limit myself thereto, as I am aware that modifications may be made therein without departing from the spirit or sacrificing the advantages thereof, and I therefore reserve the right to make such changes as fairly fall within the scope of my invention.

Having thus fully described my invention,

what I claim as new, and desire to secure by 7 Letters Patent, is

1. The combination with a hinged gate, of lever pivoted between its ends, a platform suspended from one end thereof, a Weight at the opposite end, an arm to the gate, and a g rod pivotally connected, at opposite ends, to

said arm and lever respectively.

2 The combination with a fence-panel, of a gate hinged thereto, a lever pivoted to the panel, a Weighted arm thereto, a platform suspended from the lever, an arm to the gate ,and a rod pivotally connected, at opposite ends, to said arm and lever respectively. 1\ 3. The combination with a fence-panel, of

a gate hinged thereto, a lever pivoted to the panel, an arm to said lever, an adjustable Weight thereon, a platform suspended from the lever, an arm to said gate and a rod pivotally connected to the arm and lever.

4. The combination with a fence-panel, of

Witnesses:

W. R. BLUME, W. H. STOWASSER, Jr. 

